{"id":"vidhyamitra:city-day:rishikesh:1998-02-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1998-02-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-02-25","date_display":"February 25, 1998 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450869.770833,"kali_year":5099,"ahargana":1862404.2708,"sun":{"sidereal_longitude":312.5475,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":289.2578,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.7103,"elapsed_within_tithi_degrees":0.7103},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":289.2578,"elapsed_within_degrees":9.2578},"yoga":{"number":19,"name":"Parigha","sum_longitude":241.8054},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":1998,"month":2,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450869.770833,"ahargana":1862404.2708,"kali_year":5099,"ayanamsa_lahiri":23.8272,"grahas":{"sun":{"sidereal_longitude":312.40240900000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":289.188809,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":2.3563},"mars":{"sidereal_longitude":330.26550900000007,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":314.67440899999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":311.094609,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":270.91280900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":353.825609,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":140.8592,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.8592,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450869.770833,"kali_year":5099,"ahargana":1862404.2708,"sun":{"sidereal_longitude":312.5475,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":289.2578,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.7103,"elapsed_within_tithi_degrees":0.7103},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":289.2578,"elapsed_within_degrees":9.2578},"yoga":{"number":19,"name":"Parigha","sum_longitude":241.8054},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.356,"elongation":23.29},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.356,"opposition_distance":156.71}},"eclipse_window_40days":[{"offset_days":2,"type":"solar","occurs":true,"moon_latitude":0.255,"elongation":2.931},{"offset_days":16,"type":"lunar","occurs":true,"moon_latitude":0.638,"opposition_distance":0.442}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:48","sunsetLocal":"18:13","solarNoonLocal":"12:31","dayLengthHours":11.410587087879925,"dayLengthDisplay":"11 Hours 24 Mins 38 Secs","nightLengthDisplay":"12 Hours 35 Mins 22 Secs","moonriseLocal":"05:35","moonsetLocal":"16:20","rahuKala":{"name":"Rāhu Kāla","start":"12:31","end":"13:56","startHours":12.510528078915524,"endHours":13.936851464900514,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:14","end":"09:39","startHours":8.231557920960551,"endHours":9.65788130694554,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:05","end":"12:31","startHours":11.084204692930532,"endHours":12.510528078915524,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:51","startHours":9.467704855480877,"endHours":9.848057758410206,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:35","startHours":7.280675663637224,"endHours":7.584957985980688,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:53","startHours":12.130175175986192,"endHours":12.890880981844855,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:17","end":"06:03","startHours":5.283822923258237,"endHours":6.044528729116899,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:51","end":"06:48","startHours":5.854352277652233,"endHours":6.80523453497556,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:10","startHours":14.412292593562178,"endHours":15.17299839942084,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.015821622855487,"endHours":18.415821622855486,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:41","startHours":18.215821622855486,"endHours":18.69126275151715,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.965821622855486,"endHours":19.715821622855486,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:53","startHours":24.130175175986192,"endHours":24.890880981844855,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:48","end":"08:14","startHours":6.80523453497556,"endHours":8.231557920960551,"quality":"auspicious"},{"name":"Amṛta","start":"08:14","end":"09:39","startHours":8.231557920960551,"endHours":9.65788130694554,"quality":"auspicious"},{"name":"Kāla","start":"09:39","end":"11:05","startHours":9.65788130694554,"endHours":11.084204692930532,"quality":"inauspicious"},{"name":"Śubha","start":"11:05","end":"12:31","startHours":11.084204692930532,"endHours":12.510528078915524,"quality":"auspicious"},{"name":"Roga","start":"12:31","end":"13:56","startHours":12.510528078915524,"endHours":13.936851464900514,"quality":"inauspicious"},{"name":"Udveg","start":"13:56","end":"15:22","startHours":13.936851464900514,"endHours":15.363174850885503,"quality":"inauspicious"},{"name":"Chala","start":"15:22","end":"16:47","startHours":15.363174850885503,"endHours":16.789498236870497,"quality":"neutral"},{"name":"Labha","start":"16:47","end":"18:13","startHours":16.789498236870497,"endHours":18.215821622855486,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:13","end":"19:47","startHours":18.215821622855486,"endHours":19.789498236870497,"quality":"inauspicious"},{"name":"Chala","start":"19:47","end":"21:22","startHours":19.789498236870497,"endHours":21.363174850885507,"quality":"neutral"},{"name":"Labha","start":"21:22","end":"22:56","startHours":21.363174850885507,"endHours":22.936851464900514,"quality":"auspicious"},{"name":"Amṛta","start":"22:56","end":"00:31","startHours":22.936851464900514,"endHours":24.510528078915524,"quality":"auspicious"},{"name":"Kāla","start":"00:31","end":"02:05","startHours":24.510528078915524,"endHours":26.084204692930534,"quality":"inauspicious"},{"name":"Śubha","start":"02:05","end":"03:39","startHours":26.084204692930534,"endHours":27.65788130694554,"quality":"auspicious"},{"name":"Roga","start":"03:39","end":"05:14","startHours":27.65788130694554,"endHours":29.23155792096055,"quality":"inauspicious"},{"name":"Udveg","start":"05:14","end":"06:48","startHours":29.23155792096055,"endHours":30.80523453497556,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:48","end":"07:48","startHours":6.80523453497556,"endHours":7.80523453497556,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:48","end":"08:48","startHours":7.80523453497556,"endHours":8.805234534975561,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:48","end":"09:48","startHours":8.805234534975561,"endHours":9.805234534975561,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:48","end":"10:48","startHours":9.805234534975561,"endHours":10.805234534975561,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:48","end":"11:48","startHours":10.805234534975561,"endHours":11.805234534975561,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:48","end":"12:48","startHours":11.805234534975561,"endHours":12.805234534975561,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:48","end":"13:48","startHours":12.805234534975561,"endHours":13.805234534975561,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:48","end":"14:48","startHours":13.805234534975561,"endHours":14.805234534975561,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:48","end":"15:48","startHours":14.805234534975561,"endHours":15.805234534975561,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:48","end":"16:48","startHours":15.805234534975561,"endHours":16.80523453497556,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:48","end":"17:48","startHours":16.80523453497556,"endHours":17.80523453497556,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:48","end":"18:48","startHours":17.80523453497556,"endHours":18.80523453497556,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:48","end":"19:48","startHours":18.80523453497556,"endHours":19.80523453497556,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:48","end":"20:48","startHours":19.80523453497556,"endHours":20.80523453497556,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:48","end":"21:48","startHours":20.80523453497556,"endHours":21.80523453497556,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:48","end":"22:48","startHours":21.80523453497556,"endHours":22.80523453497556,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:48","end":"23:48","startHours":22.80523453497556,"endHours":23.80523453497556,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:48","end":"00:48","startHours":23.80523453497556,"endHours":24.80523453497556,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:48","end":"01:48","startHours":24.80523453497556,"endHours":25.80523453497556,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:48","end":"02:48","startHours":25.80523453497556,"endHours":26.80523453497556,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:48","end":"03:48","startHours":26.80523453497556,"endHours":27.80523453497556,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:48","end":"04:48","startHours":27.80523453497556,"endHours":28.80523453497556,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:48","end":"05:48","startHours":28.80523453497556,"endHours":29.80523453497556,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:48","end":"06:48","startHours":29.80523453497556,"endHours":30.80523453497556,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.225179456137303,"eotMinutes":-13.702084734931393,"ayanamsa":23.8272}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Caturdaśī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"maha-shivaratri","name":"Mahā Śivarātri","name_sanskrit":"महा शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"The greatest night of Lord Śiva; cosmic dance of dissolution.","vrata":true,"primary_observance":"Strict fast + night-long vigil + 4-yāma pūjā","detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":1},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"maha-shivaratri-walk","name":"Mahā Śivarātri Walk","name_sanskrit":"महा शिवरात्रि यात्रा","type":"festival","description":"Śiva-stuti through Bhāgavata + Mahābhārata Anuśāsana.","step_count":12,"url":"/walk/maha-shivaratri-walk"},"reason":"Today is Mahā Śivarātri — its dedicated walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 25, 1998 CE · Ṛṣikeśa · Vidhyamitra","description":"February 25, 1998 CE for Ṛṣikeśa: Kṛṣṇa Caturdaśī, sūryodaya 06:48, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1998-02-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1998-02-25","sa":"https://sa.vidhyamitra.com/city/rishikesh/1998-02-25","hi":"https://hi.vidhyamitra.com/city/rishikesh/1998-02-25","x-default":"https://vidhyamitra.com/city/rishikesh/1998-02-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T06:52:52.691Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-17T06:52:52.691Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T06:52:52.691Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}